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D. F. SHOPE.

BRJCKMAKING MACHINE.

APPLICATION man JUNE 13. 1917.

1,306,977. Patented June 17, 1919.

D. F. SHOPE.

BRlCKMAKlNG MACHINE.

APPLICATION HLED IUNE 13. m1.

Patented June 17, 1919.

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BRICKMAKING-MACHINE.

Specification of Letters Patent.

Patented June 17, 1919.

Application filed June 13, 1917. Serial No. 174,511.

T 0 all whom it may concern:

Be it known that 1, DAVID l Snore. a citizen of the Unitec States,residing in the city of Portland, county of lviultnomah. and State ofOregon. have invented certain new and useful Improvements inBriclunaking- Machines, of which the following is a specification.

My invention relates to brick making machines of the character shown anddescribed in Letters Patent Number 965,027. issued to me July 19, 1910.This machine. like the One referred to. is adapted to receive a plasticsubstance, such as cement, or a cement mixture, and is capable ofmanipulation for the purpose of efiectivelv and speedily tamping andmolding said substance into bricks.

One of the principal objects of theprcsent invention is to provide in amachine of the character referred to adjustable form members adapted,when in place. to form a series of molds into which the plastic materialis placed, together with improved means for tamping such I materialfirmly into said forms, the side and front form members being removablefrom the formed bricks. whereby to leave the same in spaced relationshipupon a removable pallet. which can he lifted bodilv from the machine.

Another object of the present invention a to provide a removable frontform memher. which can be so removed from the front ends of the formedbricks. as with a wiping movement, whereby to avoid danger ofdisturbing. or breaking away. any of the material off" which the brickis formed. and leaving; the ends of the'bricks exposed for furtherfinishin treatment.

in order to more clearly explain my invention I have illustrated thesame in the accompanying drawings. which I will now describe.

Figure 1 is a top plan view or" a brick making machine embodying myinvention:

parts shown in section;

Fig. 3 is a side view thereof. with parts I shown in section;

Fig. 4 is a front end view of the molds. with a guard board in place toprotect the top surface of the bricks while the ends thereof are beingtreated;

' Fig. 5 is a detail;

Fig. 6 shows top and from: views of a retowns the bottom of 2 is afront.- cnd view thereof. withthe mold forms when in place in themachine; and

Fig. 7 is a sectional view taken on line 77 of Fig. 1.

Referring now in detail to the drawings mv invention. as here embodied,comprises a table structure having the legs 1-1, suitable brace bars2-2, top end members 38, and top side members 44. said top side membersM, being extended rearwardly so as to project beyond the table legs, asclearly shown in Figs. 1 and 3.

A plurality of side form plates 5-5, are adjustably secured together onscrew threaded bolts li-6. with adjustment nuts 7-7. on each bolt at theopposite sides of cachplate 5 5. as clearly shown in Figs. 1 and 2. saidbolts being attached at their opposite ends to side members S8. thelower edges of which. at their rear ends. move upon rollers 99. and theupper edges of which have bearing thereon rollers 1010. mounted inbrackets 1111. secured to the opposite sides oi the machine. as will beclear from-the drawings. Mounted on the outer sides of said side members8. are racks 1212. adapted to mesh with gears 13-13. mounted at theopposite sides of the machine on a shaft 14. provided on its outer endswith cranks 15 15. whereby said racks 1212. said side members R8. andsaid spaced torm plates can be moved longitudinally together rcarwardlyuntil'thc Forward ends of said side plates 5-:'i. are drawn through across back plate 16. provided with vertical slots .through which saidside plates 5: slide. Said side plates 5-5 are drawn through said backplate 16. until their ends are substantially flush with the trout faceof said back plate 16. in a manner which will be rcadilv uudcrstood fromFigs. 1 and 3.

. Dctachabl v mounted across the trout of the machine is a supportingpallet 17. shown in top and trout edge views in Fig. fl. said palletshaving end picccs1R-1R on their undor sides on which "to stand saidpallets. anda metal plate covering 19. said metal plate covering beingsomewhat shorter than the pallet body 17. and being slightly wider. asclcarlv shown in the drawings. Wncn said pallets are removed with bricksthereon the; can be set one upon the other. Qaid pallet 17 is put inplace. as shown in sectional view in Fig. 3. while the side plates 5 5.are in their back, or ithdrawn position so that as said side plates aremoved forwardly their lower edges rest firmly upon theftop surfacemovement.

of said pallet. Detachably mounted on the front of said machine is afront end plate '20, provided with a handle 21, said. front plate beingheld in place against the front edge of the pallet 17, and the frontends of the spaced side plates 55, by means of an angle plate 22,mounted upon the inner face there of at one end, the projecting anglethereof having a hole therethrough adapted to pass over a pin 23, in'the forward end of the side plate 8, as'clearly seen at the upper lefthand corner of Fig. 1, and also shown in dotted lines of Fig. 2. Theopposite end of said front plate 20, is provided with a latch hook 24,pivotally connected, as at 25, Fig. 5, to an end cleat 26, on said frontplate 20. Said latch hook24 hooks over a pin 27, in the outer side ofthe side member 8. Said latch hook 24, is provided with a handle 28, bymeans of which it can be conveniently raised so a to permit the removalof. said front plate 20, by a sliding longitudinal movement to the left,as shown in Fig. 2, to detach the angle plate 22, from the pin 23, atthe oppo site side of the machine. This sliding movement of said frontplate against the front ends of the brick forms tends to smooth the endsof the bricks and to release the board therefrom before the side members5-5, are withdrawn, thus avoiding possibility of the material stickin tothe front board, or falling away from the ends of the formed bricks.Said front plate is removed Said side members are bent inwardly tdappreaching angles, as at 2929, at their rear ends, and have adjustablyattached. thereto a balancing weight 33. Said side members are bracedwith an X-brace 34.. Pivotally mounted between the forward ends of saidside members 2929, is a tamping head 35, having aseries of downwardlydepending tamping portions 36, adapted to fit, one bctween each pair ofthe side members; 5.5, when said tamping head and said frame a members29-29, are swung downwardly, as

by means of a handle extended between the ends of the side members 2929,said handle constituting a bar 37, with a pipe 38, mounted thereon, asclearly shown in the drawings, The weight 33, at the rear end of tampingframe members 29-29, serves as a balance for the tamping head'35, so asto make it] comparatively easy to raise said tamping head by hand, andat the Same time add. to

with a wiping nseam? the tamping force of the tamping head as it isdrawn downwardly, in the tamping operation.

Stop members, as 39, are mounted at the rear ends of the top sidemembers 44, and operate as stop for the side members 8-8, which carrythe side plates 5--5. Two stop pins 8 8, are mounted on the inner facesof the side members 8-8 to stop the for-.

ward movement of said side plates at the right place. Two guard plates,or covers, as 4 .0 10, are. mounted at the opposite sides of the machineover the rack 12, and the gear 13, to prevent sand and cement fromgetting into the mechanism, and interfering with the operation thereof.a r

, A pivoted front guard plate, as 41, is mounted upon side arms 42-42,pivoted to the side of the guards, or covers 4040, as clearly shownin'Figs. 3 and 4, whereby said guard plate 41, can be swung over to theposition shown in broken lines in Fig. 3, just above the front end plate20. This guard plate 11, serves as a protection for the top surfaces ofthe formed bricks after the frpnf'cnd plate 20 has been removed and itis desired to apply to the front ends of the formed brick a furthercoating or treatment for finishing the same. 1 plate 41 is provided witha handle 41*, and also with a supporting piece 41*, adapted to Saidguard rest upon the upper edge of one of the side plates 5, when saidguard plate is turned back into the position shown in Fig. 3.

Referring to Fig. 1, the upper right hand corner thereof, there is showna spring mem- 'ber 43, provided with a spring yoke 44,

adapted to act as a stop tobe engaged by the rear. end of one of thetamping frame members 29*, to hold said tamping frame in its raisedposition, as indicated in broken lines in Fig. 3. The engaging portionof the spring yoke is formed, as indicated in the detailed, sectionalview, Fig. 7, so as'to permit the member 29*, to flex it backwardly,

as said member 29. moves downwardly, whereupon said spring yoke 24:,engages the upper edge of said member 29 and holds said tampingjframe 29in its raised position until it is pulled downwardly. Thus said tampingframe is automatically and yield way, after the tamping of the materialhas been completed, and at the same time'is within convenient reach ofthe operator.

I am aware that changes in details can be made in my invention withoutdeparting from the spirit thereof, and I do not,

therefore, limit said invention to the specific construction here shownfor purposes of illustration, except as I may be limited by,

the hereto appended claims. I claim:

1. In a brick making machine, in combination, apallet, side platesspaced apart,

.' ingly held in its raised position, out of the r and a guard plateadapted to be moved w a p sition above the ends of said side plates whensald front plate 13 removed, for the purpose described.

2. In av brick making machine, in eunibinatiun, a pallet, side platesspaced apart, a back plate, a renmvahll': frunt plate mounted againstthe front ends of said side plates, and a guard plate pivotallyconnected to said machine and adapted to be umveil to a poslllon abovethe ends of said side plates when said front plate is removed, for thepurpose described.

Signed n-t Portland,-l\lnltnenmh counly, Oregon, this (3th day ef Jn'ne,1911.

DAV ll) F. SllOlll.

In presenrc of:

l. i. (inn-rm, J. R'J'IYFYH.

